Just had my appointment, which was a success! However, until the last minute I was very worried about the SA302's, and it turns out I was right to be. We did not have the SA302 printed by HMRC for the 2014-15 tax year; we only had the print-out from the last page of our submitted tax return. (The tax year finished 8 weeks ago and some of our payments relating to that year had only just come in, so we couldn't file the return any earlier... nightmare!) However, luckily we did have HMRC's SA302's for the 2013-14 tax year, and because we had submitted complete financial information for both 2014-15 and 2013-14 they decided to use the 2013-14 figures for our application. We are lucky, because they used their discretion to use the 2013-14 year. We're also lucky that we had HMRC's printed SA302 for 2013-14; otherwise, we probably wouldn't have been granted the visa. So, for future applicants, make sure you request your SA302's from HMRC 3 weeks before your appointment or before you send your postal application. They can be requested using the phone number found here:
https://www.gov.uk/government/organisat ... ndividuals (You can be on hold for a while, my record was 60 minutes...) If you tell them you're in a hurry they will expedite the posting, so hopefully it doesn't take the full 3 weeks to arrive.